Finding the Fourth Proportional to 359,530.18, 496,151.06 and 198,385.10

Step by Step Solution

1. Step 1: Write the proportion equation
   359,530.18 : 496,151.06 = 198,385.10 : x
2. Step 2: Convert to fraction form
   359,530.18/496,151.06 = 198,385.10/x
3. Step 3: Cross multiply
   359,530.18x = 496,151.06 × 198,385.10
4. Step 4: Simplify right side
   359,530.18x = 98,428,979,389.55
5. Step 5: Solve for x
   x = 98,428,979,389.55/359,530.18
6. Step 6: Final answer
   x = 273,771.12